Sound Flashcards
1
Q
What type of wave is sound
A
Longitudinal
2
Q
What range of sound can humans hear
A
20Hz to 20kHz
3
Q
What is sonar used for
A
It is used to detect shoals of fish by bouncing sound waves off them
4
Q
What is ultra sound
A
It is a sound that is above 20 kHz
5
Q
What is infrasound
A
It is a sound with a frequency below 20kHz
6
Q
What is infrasound used for
A
Herds of elephants and giraffes use infrasound to communicate over very long distances
